Home / 103,017.96-142,140.42-58,305.96

Finding the Fourth Proportional to 103,017.96, 142,140.42 and 58,305.96

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Solution

The fourth proportional to 103,017.96, 142,140.42 and 58,305.96 is: 80,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,017.96 : 142,140.42 = 58,305.96 : x
  2. Step 2: Convert to fraction form
    103,017.96/142,140.42 = 58,305.96/x
  3. Step 3: Cross multiply
    103,017.96x = 142,140.42 × 58,305.96
  4. Step 4: Simplify right side
    103,017.96x = 8,287,633,642.90
  5. Step 5: Solve for x
    x = 8,287,633,642.90/103,017.96
  6. Step 6: Final answer
    x = 80,448.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.